3rd plantiff accuses Clash

CBS -- One accusation after another for former Elmo puppeteer Kevin Clash. A third man has now come forward. A lawsuit alleges Clash had sex with a teenage boy he met on a gay chatline in 2000.

The accuser says they had a sexual relationship until he was 18, and that he suffers emotional and psychological problems from the abuse. Clash has denied any wrong-doing. He resigned as the voice of Elmo on Sesame Street earlier this month.